Work-support for dipping machinery



WILLIAMS. WORK SUPPORT FOR DIPPING MACHINERY.

APPLICATION FILED NOV. 28, 1919.

Patented Oct. 5, 1920.

0 m 5 5/ Mum w in 1 [r mi I F1? -0 w M w wm 1 4 m m w n. H u m n. n

UNITED STATES PATENT OFFICE.

ANTHONY "WILLIPIIES, (1F ROCHESTER, NEW ".ZQRK, ASSIGNOR TO NORTH EASTELEC- TRIO COMPANY, 0' 36015 NEIV YORK, A CGRPOBATION OF NEW YORK.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Application filed November 28, 1919. Serial No. 341,015.

To all to from it may concern Be it known that I, ANTHONY F. TIL- LIAMS,a citizen of the United tates, residing at Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in ork-Supports for Dipping Machinery; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to means for sup porting the work in machines bywhich articles such as the armatures of electric motors and generatorsare dipped in varnish or impregnating compounds, or the like.

The object of the invention is to produce work-supporting devices, formachines of the kind in question, which will be convcnient in use, andwhich will protect certain portions of the work such, for example, asthe shafts of armatures, from contact with the material in which thework is im mersed, while at the same time securely supporting andretaining the work.

To the foregoing ends the invention resides in various features,hereinafter pointed out, of the mechanism illustrated in theaccompanying drawings, and particularly in the use of a removable capwhich cooperates with an upper supporting member and serves both toretain the work in upright position and to protect a portion of.elevation of a cap of modified form. Figs.

4; and 5 are a side-elevation and a frontelevation, respectively, ofportions of an apparatus embodying the present invention, Fig. l beingin section on the line 44 in Fig. 5.

In machines of the kind in question it is common to employconveyer-chains carrying a series of transverse rods or supportingmembers from which the articles which are to be dipped are suspended.These chains are guided over pulleys so as to cause the articles to belowered into and raised from a tank containing the varnish orimpregnating material, and are then caused to pass through a drying ovenin which the material is dried and hardened. In the accompanyingdrawings Fig. 5 shows a portion of one of such conveyer-chains,comprislng links 10 connected together by pivot-pins in the usualmanner. One of the pivot-pins is elongated in the form of a transverserod 11, which carries the worksupporting devices constituting thepresent invention.

Brackets 12 are pivoted upon the rod 11, and support a second transverserod 13, which is shown as provided with a sleeve 14: having a series ofannular grooves. It will be understood that the chain and the bracket12, shown in Fig. 5, are duplicated at the other side of the machine,and that the rods 11 extend between the two chains at suitableintervals. These features are not shown more fully herein as they arenot in themselves novel.

As is usual in such machines each crossrod 11 carries also a drip-pan15, which serves to connect the brackets 12 and also to prevent materialwhich drips from one row of objects from falling upon the objects below.

In machines of the kind in question, where armatures are to beimpregnated, it has been common to suspend the armatures from the rod13, or its equivalent, by means of various devices, and the presentinvention resides particularly in the means for that purpose hereindisclosed. As shown in Figs. 4 and 5, the armatures are sustained attheir lower ends by means of a cross-bar 16, which is suspended by meansof links 17 engaging the grooved sleeve 18. The cross-bar 16, whichconstitutes the lower supporting member, is perforated at intervals toreceive the lower ends of the armatureshafts. The upper portions of theshafts are received in caps which constitute a particular feature of theinvention. In the more usual form one of these caps, as shown in Figs. 1and 2, comprises a hollow body 18, adapted to receive loosely the upperportion of the armature-shaft, and a forked upper extremity 19. whichloosely straddles the grooved ration or socket'in the bar 16. Thearmature is then securely retained in place during the operation of themachine. When the armature is dipped the varnish or impregnatingmaterial is prevented from entering the cap by means of the air retainedtherein, so that the armature-shaft is effectually protected and in mostcases this is accomplished without the necessity of any close fittingbetween the parts.

In some instances, where the armature is small and the shaftcomparatively long, a modified form of cap is used, as shown in Fig. 3.In this case the cap 20 extends upwardly alongside the forked portion21. In such a case, owing to the depth to which the small armature isimmersed, it is found desirable to make a tight joint between the sleeveand the armature, and for this purposethe sleeve is provided, at itsupper end, with a screw-threaded aperture 22 into which .the threadedend of the shaft is screwed, and in this manner the cap may be drawntightly against a gasket 23, by which means a fluid-tight joint isproduced be tween the armature and the cap.

While the invention has been described as applied particularly to amachine in which armatures are dipped, it will be apparent that it isnot limited to this particular use and that, in general, the inventionis not limited to the embodiment thereof herein described andillustrated in the accompanying drawings, but is susceptible to variousmodifications within the scope of the following claims.

The invention claimed is:

1. In a machine of the class described, the combination, with aconveyer, of a support for the lower end of an article to be dipped; acap for covering the upper part of the article; and an uppersupporting-member loosely engaged by the cap and serving, through suchengagement, to maintain the article substantially upright.

2. In a machine of the class described, the combination, with aconveyer, of two supports, in the form of parallel bars, carried by theconveyer, one of said supports being provided with seats for the lowerends of armatureshafts; and caps, for covering the upper ends of thearmature shafts, having forked extremities adapted to embrace the otherof said supports, whereby to maintain the armatureshafts insubstantially upright position.

3. In a machine of the class described, a cap, adapted to. cover looselythe end of an armature-shaft, provided with a forked extremity adaptedto embrace a supportingmember.

ANTHONY'F. WILLIAMS.

